html {
    height: 100%;
}

body {
    background: url("background.jpg") no-repeat bottom;
    min-height: 100%;
    margin: 0;
    padding: 0;
    background-size: 100%;

}

@media screen and (max-width: 780px) {
    body {
        background-size: 300%;
    }
}

body .main {
    height: 100vh;
    display: flex;
    align-items: center;
    flex-direction: column;
    background-size: 100%;
}

.logo-eolas {
    max-width: 80vw;
    margin: 20vh auto 60px
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    background: #E6534F;
    border-radius: 6px;
    border: none;
    color: #fff;
    font-size: 16px;
    padding: 15px 30px;
    text-decoration: none;
    max-width: 204px;
    display: block;
    font-family: 'Sora', sans-serif;
}

.deco {
    background: url("shadow.png") no-repeat center;
    width: 80vw;
    height: 25vh;
    background-size: 100%;
}